T01. Fundamentals of Wireless Networks, Prof. Mohammad Obaidat, Monmouth University, USA

T02. IP-Oriented QoS in the Next Generation Networks: application to wireless networks, Prof. Pascal Lorenz, University of Haute Alsace, France

T03. TCP in Heterogeneous Environment, Prof. Nirwan Ansari, New Jersey Institute of Technology, USA

T04. Cellular Based and IEEE Standards Solutions for Broadband Wireless IP, Prof. Abbas Jamalipour, University of Sydney, Australia

The field of wireless networks systems has witnessed tremendous growth in recent years causing it to become one of the fastest growing segments of the telecommunications technology. As wireless networks evolve with increasing size and profitability, they will be able to integrate with other wireless technologies enabling them to support mobile computing applications and perform as efficiently as wired networks. Due to the difficulties posed by the wireless transmission medium and the increasing demand for better and cheaper services, the area of wireless networks is also an extremely rich field for research and development.

This tutorial provides in-depth coverage of the wide range of wireless technological alternatives offered today. It covers the fundamental techniques in the design, operation, and evaluation of wireless networks. It introduces the basic topics involved with wireless systems such as the electromagnetic spectrum physics of propagation, modulation multiple access and performance enhancement techniques, and cellular and ad-hoc concepts. It also presents the First Generation (1G) cellular systems, current Second Generation (2G) systems architectures supporting voice and data transfer and discusses the fast evolving world of Third Generation (3G) mobile networks systems. We will also, provide a vision of 4G and beyond mobile and wireless systems and describe satellite-based systems, fixed wireless systems, wireless LANs, wireless ATM and ad-hoc systems, Personal Area Networks (PANs) and security issues in wireless networks. Techniques for modeling simulation of wireless networks along with case studies will be covered as well. This tutorial provides engineers, researchers, faculty members, and graduates with an update of all of the key areas of wireless networks systems.

Speaker's Biography: Professor Mohammad S. Obaidat is an internationally well known academic/researcher/ scientist. He received his Ph.D. and M. S. degrees in Computer Engineering from The Ohio State University, Columbus, Ohio, USA. Dr. Obaidat is currently a tenured full Professor of Computer Science at Monmouth University, NJ, USA. Among his previous positions are Chair of the Department of Computer Science and Director of the Graduate Program at Monmouth University and a faculty member at the City University of New York. He has received extensive research funding and has published over three hundred (300) refereed technical articles in scholarly international journals and proceedings of international conferences. He is also the author/coauthor of five books including the best selling book entitled:" Wireless Networks." Professor Obaidat has served as a consultant for several corporations and organizations worldwide and is the chief editor of the Wiley International Journal of Communication Systems. He is also an editor of over eight other journals including two IEEE Transactions. Obaidat has served as the steering committee chair, advisory Committee Chair and program chair of many international conferences. He has served as Vice President of Conferences of the Society for Modeling and Simulation International SCS and is currently the Vice President of Membership of SCS. His research interests are: wireless communications and networks, performance evaluation of computer systems, algorithms and networks, telecommunications and Networking systems, applied neural networks and pattern recognition, information and computer security, security of e-based systems. He has received many awards including the recent Fulbright Distinguished Award. He is currently on sabbatical leave as Fulbright Professor and Advisor to the President of Philadelphia University for Research, Development and Information Technology. He has served as an IEEE Computer Society Distinguished Speaker between 1995 and 1998 and has served as an ACM Distinguished Speaker since 1997. Prof. Obaidat is a Fellow of IEEE and SCS.

Emerging Internet Quality of Service (QoS) mechanisms are expected to enable wide spread use of real time services such as VoIP and videoconferencing. The "best effort" Internet delivery cannot be used for the new multimedia applications. New technologies and new standards are necessary to offer Quality of Service (QoS) for these multimedia applications. Therefore new communication architectures integrate mechanisms allowing guaranteed QoS services as well as high rate communications.

The service level agreement with a mobile Internet user is hard to satisfy, since there may not be enough resources available in some parts of the network the mobile user is moving into. The emerging Internet QoS architectures, differentiated services and integrated services, do not consider user mobility. QoS mechanisms enforce a differentiated sharing of bandwidth among services and users. Thus, there must be mechanisms available to identify traffic flows with different QoS parameters, and to make it possible to charge the users based on requested quality. The integration of fixed and mobile wireless access into IP networks presents a cost effective and efficient way to provide seamless end-to-end connectivity and ubiquitous access in a market where the demand for mobile Internet services has grown rapidly and predicted to generate billions of dollars in revenue.

This tutorial covers to the issues of QoS provisioning in heterogeneous networks and Internet access over future wireless networks as well as ATM, MPLS, DiffServ, IntServ frameworks. It discusses the characteristics of the Internet, mobility and QoS provisioning in wireless and mobile IP networks. This tutorial also covers routing, security, baseline architecture of the inter-networking protocols and end to end traffic management issues.

Speaker's Biography: Pascal Lorenz (lorenz@ieee.org) received a PhD degree from the University of Nancy, France. Between 1990 and 1995 he was a research engineer at WorldFIP Europe and at Alcatel-Alsthom. He is a professor at the University of Haute-Alsace and responsible of the Network and Telecommunication Research Group. His research interests include QoS, wireless networks and high-speed networks. He was the Program and Organizing Chair of the IEEE ICATM'98, ICATM'99, ECUMN'00, ICN'01, ECUMN'02 and ICT'03, ICN'04 conferences and co-program chair of ICC'04. Since 2000, he is a Technical Editor of the IEEE Communications Magazine Editorial Board. He is the secretary of the IEEE ComSoc Communications Systems Integration and Modelling Technical Committee. He is senior member of the IEEE, member of many international program committees and he has served as a guest editor for a number of journals including Telecommunications Systems, IEEE Communications Magazine and LNCS. He has organized and chaired several technical sessions and gave tutorials at major international conferences. He is the author of 3 books and 135 international publications in journals and conferences.

The Internet provides a platform for rapid and timely information exchange among a disparage array of clients/servers. TCP (Transmission Control Protocol) and IP (Internet Protocol) were separately designed and closely tied protocols that define the rules of communication between the end hosts, and are the most commonly used protocol suite for data transfer in the Internet. The combination of TCP/IP dominates today's communication in various networks from the original wired backbone to the heterogeneous network for its remarkable simplicity and reliability. TCP has become the de facto standard used in most applications ranging from interactive sessions such as Telnet and HTTP, to bulk data transfer like FTP. TCP was originally designed primarily for the wired networks. In the wired networks, random bit error rate (BER), a characteristic usually exhibited in the wireless network, is negligible, and congestion is the main cause of packet loss. The emerging wireless applications, especially the high-speed multimedia services and the advent of wireless IP communications, carried by the Internet calls for a calibration and sophisticated tuning of this protocol suite for improved performance. In this tutorial, following a brief introduction to TCP, we analyze the problems that TCP exhibits in the wireless IP communication environment, and illustrate the viable strategies by detailed examples.

Speaker's Biography: Nirwan Ansari received the B.S.E.E. (summa cum laude), M.S.E.E., and Ph.D. from NJIT, University of Michigan, and Purdue University in 1982, 1983, and 1988, respectively. He joined the Department of Electrical and Computer Engineering, NJIT, as an assistant professor in 1988, and has been promoted to a full professor since 1997. His current research focuses on various aspects of high speed networks and multimedia communications. He is a technical editor of the IEEE Communications Magazine, Computer Communications, the ETRI journal as well as the Journal of Computing and Information Technology. He authored with E.S.H. Hou Computational Intelligence for Optimization (1997, and translated into Chinese in 2000), and edited with B. Yuhas Neural Networks in Telecommunications (1994), both published by Kluwer Academic Publishers. He has been frequently invited to deliver talks and tutorials. He was a distinguished speaker at the 2004 Sendai International Workshop on Internet Security and Management, and a keynote speaker at the IEEE/ACM co-sponsored International Conference on E-Business and Telecommunication Networks (ICETE2004). He has also contributed 80 refereed journal articles. He organized (as the General Chair) the First IEEE International Conference on Information Technology: Research and Education (ITRE2003), was instrumental, while serving as its Chapter Chair, in rejuvenating the North Jersey Chapter of the IEEE Communications Society which received the 1996 Chapter of the Year Award and a 2003 Chapter Achievement Award, served as the Chair of the IEEE North Jersey Section and in the IEEE Region 1 Board of Governors during 2001-2002, and currently serves in various IEEE committees. He was the 1998 recipient of the NJIT Excellence Teaching Award in Graduate Instruction, and a 1999 IEEE Region 1 Award.

While broadband wireless IP has been a topic of research in the past few years for the telecommunications engineers, it has been always assumed that it would be developed within the cellular wireless network infrastructure or later through the integration with the complementary services provided by the wireless LAN. More recently, we are witnessing a new direction from emerging standards and technologies that are from the IEEE 802 family. The IEEE 802.16 wireless MAN together with the IEEE 802.20 and 802.21 would create a new path for the wireless IP having better compatibility with the IEEE 802.11 wireless LAN than their cellular counterparts.

Although the two directions are different in principle, due to the vast infrastructure of wireless cellular (2G and 3G) already deployed in most parts of the world, the future of wireless IP will remain in efficient integration and internetworking of all these networks.

In this tutorial the state-of-the art technologies for the wireless IP including cellular networks and IEEE standards will be reviewed. Technological requirements of the next generation networks to support the wireless IP including mobility management, resource management, and quality of service management will be outlined. The most profound requirement of the future wireless IP network, that is, the network architecture will be explained with emphasis on future services and applications that must be supported within the wireless networks, consisting both data and voice-type real time traffics. The tutorial will compare the two deployment directions of the wireless IP using cellular versus IEEE standards.

Speaker's Biography: Abbas Jamalipour is with the School of Electrical and Information Engineering at the University of Sydney, Australia, where he is responsible for teaching and research in wireless data communication networks, wireless IP networks, network security and cellular communications. He holds a PhD in Electrical Engineering from Nagoya University, Japan. He is the author of "The Wireless Mobile Internet - Architectures, Protocols and Services," John Wiley & Sons 2003. In addition, he has authored another book on satellite communication networks with Artech House in 1998, coauthored four other technical books on wireless telecommunications, and over 130 papers in major journals and international conferences. He has organized several special issues on the topic of 3G and beyond wireless cellular systems as well as broadband wireless networks in IEEE magazines and journals. He is a technical editor to the IEEE Wireless Communications Magazine, IEEE Communications Magazine, and the Wiley International Journal of Communication Systems. Professor Jamalipour is the Technical Program Vice-Chair of IEEE WCNC2005, Co-Chair of Symposium on Next Generation Networks, IEEE ICC2005, Technical Program Vice-Chair IEEE HPSR 2005, Technical Program Chair of the Wireless Communications Symposium, IEEE GLOBECOM2005, and Co-Chair of Symposium on Next Generation Mobile Networks, IEEE ICC2006. He is a Distinguished Lecturer of IEEE Communications Society, a Fellow Member of IEAust; a Senior Member of IEEE; Chair of IEEE Communications Society Satellite and Space Communications Technical Committee; Vice Chair of Asia Pacific Board, Technical Affairs Committee; and Secretary of Communications Switching and Routing Technical Committee.